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Post by john442 on Oct 5, 2019 12:30:19 GMT -5
I noticed what sounds like air escaping when depressing the brake pedal and it seemed to go down further than before. Am I correct in thinking the booster may need replacing and if so is this a 9" or can 11" also be used and be a better choice? If it needs replacing I was thinking it would be a good idea to also install a dual master cylinder at the same time. I would appreciate any help and suggestions.
Thanks in advance for any help, John |
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Post by dads442 on Oct 5, 2019 14:28:06 GMT -5
went thru the same scenario only on another Gm brand car...66 Chevelle SS, had a dual chambered master cylinder already on it as I had already swapped in disk brakes on the front...also had a 8" booster on it as that is what would fit with a big block...developed issues with the master and booster so installed a new dual 8 "diaphragm booster and dual master cylinder combo and wow what a difference...stops like a modern day car, barely need much pedal pressure now...it is a CPP combo...not cheap but has worked great so far...will most likely use the same unit on my 65 holiday when I get that far...
hope this helps some...
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Post by john442 on Oct 6, 2019 9:24:59 GMT -5
Thanks for your help. I'll check it out.
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Post by joepadavano on Oct 6, 2019 10:20:21 GMT -5
Stock booster on a 1965 is a 9". Hissing can mean that the air admittance valve at the rear (pedal end) of the booster is leaking.
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Post by john442 on Oct 6, 2019 12:58:44 GMT -5
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